Sash-fastener



(NopModeL O. A. PRISBIE. SASH FASTENEBT i Patemted Feb. 24.1891.

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UNITED STATES PATENT OFFICE.-

CHARLES ALVIN FRISBIE, OF STANBERRY, MISSOURI.

SASH-FASTENERf SPECIFICATION forming part of Letters Patent No.446,969,dated February 24-, 1891.

Application filed October 23, 1890. Serial No. 369,053. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES ALVIN FRIS- BIE, a citizen of the UnitedStates, residing at Stanberry, in the county of Gentry and State ofMissouri, have invented a new and useful Vindow, of which the followingis a specification.

The invention relates to improvements in windows.

The object of the present invention is to provide simple and inexpensivemeans for operating window -sashes and controlling the same and lockingthem when closed.

The invention consists inthe construction and novel combination andarrangement of parts hereinafter fully described, and pointed out in theclaims hereto appended.

In the drawings, Figure l is a perspective view of a window providedwith my improve ment. Fig. 2is a vertical sectional view. Fig. 3 is ahorizontal sectional View on line x as of Fig. 2. Fig. 4 is a similarView on line y g of Flg. 2. Fig. 5 is a detail view of the sash.

Referring to the accompanying drawings, 1 designates a window-framehaving its upper and lower sashes 2 and 3 provided at opposite sideswith longitudinal grooves or bores 4, and havinglongitudinal slots 5 intheirouter edges, which communicate with the longitudinal grooves oropenings 4:. Each sash is provided at one side with the said grooves andslots; and these are arranged at opposite sides of the window and havearranged within them a spiral spring 6, which is engaged by a horizontalprojection 7, projecting through the slot ointo the opening or bore 4:,whereby when the sash is lowered the spring is compressed and the sashwhen released will rise and be maintained in an elevated position.

The horizontal projection '7 is preferably mounted in an adjustableslide 8, adapted to be moved longitudinally of the window-frame to varythe tension of the spring.

The 'upper sash is provided at the sides of the frame with verticalseries of perforations 9, which are engaged by sliding bolts 10, mountedin bearings 11 of plates 12, arranged at each side of the the lower sashon the upper edge thereof. The sliding bolts are provided intermediateof their ends with depend ing loops 13, which are connected tocrankloops 14 of a rock-shaft 15, which has one end the rock-shaft andwithdraw the bolts from the perforations 9 of the upper sash.

The vertically-slidin g bar 18 is provided intermediate its ends with anextension 22,

which has an inclined slot 23, which engages a pin 2st, projecting fromthe cam 25, pivoted to the lower sash, and having a curved edge 26 toengage the adjacent side of the casing and maintain the lower sash atany desired point of adjustment. The rock-shaft 15 is journaled inbearings of the plates 12, and by means of the sliding bolts andperforations of the upper sash the sashes can be readily adjustedrelatively to each other, and by means of the cam the lower sash can besecured at any point along the window-frame.

The upper sash 2 is designed to be provided with suitablecurtain-fixture brackets to enable the curtain of the window to beadjusted vertically to permit ventilation.

The upper and lowersashes have the springs on one side, and 011the'other side of each sash are recesses 27, in which are journaledrollers 28, which facilitate the vertical movement of the sashes andprevent them binding.

From the foregoing description and the accompanying drawings theconstruction, operation, and advantages of the operation will be readilyunderstood.

Vhat I claim is 1. The combination, in a window, of the upper sashprovided with series of perforations 9, the lower sash, the slidingbolts mounted on the upper edge of the lower sash and arranged to engagethe said perforations, the rock-shaft journaled on the upper edge of thelower sash and connected with the sliding bolts, and thevertically-slidin g bar connected to and operating the rock-shaft,substantially as described.

2. The combination, in a window, of the upper sash provided withperforations, the lower sash, the bearing-plates secured to the upperedge of the lower sash, the bolts slidingin the bearing-plates andarranged to engage the said perforations, the rock-shaft journaledin thesaid plates and connected with the sliding bolts, the cam pivoted to thelower sash and arranged to engage the casing of the window, and thevertically-sliding bar connected with the rock-shaft and the cam,substantially as and for the purpose described.

3. In a window, the combination of the upper sash provided withperforations, the lower sash, the bolts sliding on the lower sash andarranged to engage the perforations, the rockshaft journaled on thelower sash and connccted to the sliding bolts, the cam pivoted to thelower sash and arranged to engage the casin g and provided with the pinfZ-t, and the vertically-slidin g bar connected with the rockshaft andprovided with the upwardly-extending projection having the inclined slotto receive the said pin, substantially as described. In testimony that Iclaim the foregoing as my own I have hereto ailixed my signature inpresence of two witnesses.

CHARLES ALVIN FRISBIE.

Witnesses:

NEWTON OLIVER DOUGHTY, ELEAZAR J ornmv COVEY.

